The patch titled
Subject: selftests/mm: fix "warning: expression which evaluates to zero..." in mlock2-tests.c
has been added to the -mm mm-unstable branch. Its filename is
selftests-mm-fix-warning-expression-which-evaluates-to-zero-in-mlock2-testsc.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-fix-warning-expression-which-evaluates-to-zero-in-mlock2-testsc.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: John Hubbard <jhubbard@xxxxxxxxxx>
Subject: selftests/mm: fix "warning: expression which evaluates to zero..." in mlock2-tests.c
Date: Tue, 6 Jun 2023 00:16:29 -0700
The stop variable is a char*, and the code was assigning a char value to
it. This was generating a warning when compiling with clang.
However, as both David and Peter pointed out, stop is not even used
after the problematic assignment to a char type. So just delete that
line entirely.
Link: https://lkml.kernel.org/r/20230606071637.267103-4-jhubbard@xxxxxxxxxx
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Peter Xu <peterx@xxxxxxxxxx>
Tested-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/mm/mlock2-tests.c | 1 -
1 file changed, 1 deletion(-)
--- a/tools/testing/selftests/mm/mlock2-tests.c~selftests-mm-fix-warning-expression-which-evaluates-to-zero-in-mlock2-testsc
+++ a/tools/testing/selftests/mm/mlock2-tests.c
@@ -50,7 +50,6 @@ static int get_vm_area(unsigned long add
printf("cannot parse /proc/self/maps\n");
goto out;
}
- stop = '\0';
sscanf(line, "%lx", &start);
sscanf(end_addr, "%lx", &end);
_
Patches currently in -mm which might be from jhubbard@xxxxxxxxxx are
selftests-mm-fix-uffd-stress-unused-function-warning.patch
selftests-mm-fix-unused-variable-warnings-in-hugetlb-madvisec-migrationc.patch
selftests-mm-fix-warning-expression-which-evaluates-to-zero-in-mlock2-testsc.patch
selftests-mm-fix-invocation-of-tests-that-are-run-via-shell-scripts.patch
selftests-mm-gitignore-add-mkdirty-va_high_addr_switch.patch
selftests-mm-fix-two-wformat-security-warnings-in-uffd-builds.patch
selftests-mm-fix-a-possibly-uninitialized-warning-in-pkey-x86h.patch
selftests-mm-fix-build-failures-due-to-missing-madv_collapse.patch
selftests-mm-move-certain-uffd-routines-from-vm_utilc-to-uffd-commonc.patch
documentation-kselftest-make-headers-is-a-prerequisite.patch
selftests-error-out-if-kernel-header-files-are-not-yet-built.patch
selftests-error-out-if-kernel-header-files-are-not-yet-built-fix.patch
